first impression :

this game is as frustrating as it is fun.
one of the few games where single player and co op stands on equal ground.
an extremely replayable game.
the game itself is fast paced, so the only thing that slows down the gameplay is your reactions and strategies. if you can pull those off real quick without dying, the game makes you feel like a bad ass(not kidding).
only downside is that the character unlock animation plays only when the character is first unlocked. its such a fun moment that its sad to see it go after u unlock a character.
fun until the very end